#include "stdio.h"
#include "unistd.h"
#include "sys/types.h"
#include "sys/stat.h"
#include "fcntl.h"
#include "stdlib.h"
#include "string.h"
#include <sys/ioctl.h>

/* 命令值 */
#define CLOSE_CMD       (_IO(0XEF, 0x1)) /* 关闭定时器 */
#define OPEN_CMD        (_IO(0XEF, 0x2)) /* 打开定时器 */
#define SETPERIOD_CMD   (_IO(0XEF, 0x3)) /* 设置定时器周期命令 */

